• Description
  • Why Buy From Us

Solis S6-GC40K-US-APST Three Phase Grid-Tied PV String Inverters

Maximize the efficiency of your commercial solar installations with the Solis S6-GC40K-US-APST Three Phase Grid-Tied PV String Inverter. Boasting a remarkable max efficiency of 98.8% and equipped with advanced features like AFCI protection to reduce fire risks, this inverter is designed for optimal performance and safety.

  • High max efficiency of 98.8% for superior energy conversion.
  • 3/4 MPPT design supports diverse system layouts.
  • Night time PID recovery function to enhance system yield (optional).
  • Wide voltage range and low startup voltage for flexible installation.
  • Equipped with external power control interface and intelligent string monitoring.

Technology and Overview

Featuring advanced technology such as smart I-V curve scanning and support for RS485, Ethernet, WiFi, and Cellular communications, this inverter ensures efficient operation and easy integration into any solar project.

Installation and Compatibility Overview

Designed for easy installation and compatibility with a wide range of PV modules, enhancing the adaptability and efficiency of solar power systems.

Benefits and Applications Overview

Ideal for commercial and utility-scale solar projects, the Solis S6-GC40K-US-APST offers a blend of high performance, reliability, and cost-effectiveness, driving sustainable energy solutions forward.

Specification Value
Max. Efficiency 98.8%
CEC Efficiency 98.5%
Max. Input Voltage 1000V
MPPT Voltage Range 180-1000V
Max. Input Current 4*40A
Protection Class Type 4X
Operating Temperature Range -13°F to 140°F
Compliance UL1741SB, IEEE 1547-2018, and more
Warranty 5-Year Limited

Why Choose Green Vista Living


At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First


As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet


Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts


Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living


Price Match Guarantee: Thanks to our partnerships, we offer the best prices around. If you find a better deal, we’ll refund the difference.


Free Shipping: We offer free shipping on most orders to the lower 48 U.S. states, making your shopping experience even easier.


100% Secure Ordering: Our site uses SSL Encryption technology to keep your payment and personal information safe and secure.


Volume Discounts: For large orders, we’re happy to provide special pricing—just reach out for a custom quote.


Authorized Dealer: As an authorized dealer for all our brands, you’ll receive full manufacturer warranties with every order.


At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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